725505136 has 10 divisors (see below), whose sum is σ = 1405666232. Its totient is φ = 362752560.

The previous prime is 725505133. The next prime is 725505149. The reversal of 725505136 is 631505527.

725505136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725505133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22672020 + ... + 22672051.

Almost surely, 2^725505136 is an apocalyptic number.

It is an amenable number.

725505136 is a deficient number, since it is larger than the sum of its proper divisors (680161096).

725505136 is a wasteful number, since it uses less digits than its factorization.

725505136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45344079 (or 45344073 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 725505136 is about 26935.2025423979. The cubic root of 725505136 is about 898.5594799277.

The spelling of 725505136 in words is "seven hundred twenty-five million, five hundred five thousand, one hundred thirty-six".